"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.DebugChannel = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * Copyright (c) 2017-present, Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * This source code is licensed under the BSD-style license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * LICENSE file in the root directory of this source tree. An additional grant
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * of patent rights can be found in the PATENTS file in the same directory.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      */

var _invariant = require("./../../common/invariant.js");

var _invariant2 = _interopRequireDefault(_invariant);

var _FileIOWrapper = require("./../../common/channel/FileIOWrapper.js");

var _DebugMessage = require("./../../common/channel/DebugMessage.js");

var _MessageMarshaller = require("./../../common/channel/MessageMarshaller.js");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

//Channel used by the DebugServer in Prepack to communicate with the debug adapter
var DebugChannel = exports.DebugChannel = function () {
  function DebugChannel(ioWrapper) {
    _classCallCheck(this, DebugChannel);

    this._requestReceived = false;
    this._ioWrapper = ioWrapper;
    this._marshaller = new _MessageMarshaller.MessageMarshaller();
  }

  _createClass(DebugChannel, [{
    key: "debuggerIsAttached",


    /*
    /* Only called in the beginning to check if a debugger is attached
    */
    value: function debuggerIsAttached() {
      var message = this._ioWrapper.readInSyncOnce();
      if (message === null) return false;
      var parts = message.split(" ");
      var requestID = parseInt(parts[0], 10);
      (0, _invariant2.default)(!isNaN(requestID), "Request ID must be a number");
      var command = parts[1];
      if (command === _DebugMessage.DebugMessage.DEBUGGER_ATTACHED) {
        this._requestReceived = true;
        this._ioWrapper.clearInFile();
        this.writeOut(requestID + " " + _DebugMessage.DebugMessage.PREPACK_READY_RESPONSE);
        return true;
      }
      return false;
    }

    /* Reads in a request from the debug adapter
    /* The caller is responsible for sending a response with the appropriate
    /* contents at the right time.
    */

  }, {
    key: "readIn",
    value: function readIn() {
      var message = this._ioWrapper.readInSync();
      this._requestReceived = true;
      return this._marshaller.unmarshallRequest(message);
    }

    // Write out a response to the debug adapter

  }, {
    key: "writeOut",
    value: function writeOut(contents) {
      //Prepack only writes back to the debug adapter in response to a request
      (0, _invariant2.default)(this._requestReceived, "Prepack writing message without being requested: " + contents);
      this._ioWrapper.writeOutSync(contents);
      this._requestReceived = false;
    }
  }, {
    key: "sendBreakpointsAcknowledge",
    value: function sendBreakpointsAcknowledge(messageType, requestID, args) {
      this.writeOut(this._marshaller.marshallBreakpointAcknowledge(requestID, messageType, args.breakpoints));
    }
  }, {
    key: "sendStoppedResponse",
    value: function sendStoppedResponse(reason, filePath, line, column) {
      this.writeOut(this._marshaller.marshallStoppedResponse(reason, filePath, line, column));
    }
  }, {
    key: "sendStackframeResponse",
    value: function sendStackframeResponse(requestID, stackframes) {
      this.writeOut(this._marshaller.marshallStackFramesResponse(requestID, stackframes));
    }
  }, {
    key: "sendScopesResponse",
    value: function sendScopesResponse(requestID, scopes) {
      this.writeOut(this._marshaller.marshallScopesResponse(requestID, scopes));
    }
  }, {
    key: "sendVariablesResponse",
    value: function sendVariablesResponse(requestID, variables) {
      this.writeOut(this._marshaller.marshallVariablesResponse(requestID, variables));
    }
  }, {
    key: "sendEvaluateResponse",
    value: function sendEvaluateResponse(requestID, evalResult) {
      this.writeOut(this._marshaller.marshallEvaluateResponse(requestID, evalResult));
    }
  }, {
    key: "shutdown",
    value: function shutdown() {
      this._ioWrapper.clearInFile();
      this._ioWrapper.clearOutFile();
    }
  }]);

  return DebugChannel;
}();
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